Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 2AW
Sales Tax
A
- The retail price of the item being purchased
- The sales tax rate
Once these items have been entered, the program should calculate and display the following:
- The sales tax for the purchase
- The total of the sale
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How to develop a C program that receives the message sent by the provided program and displays the name and email included in the message on the screen?Here is the code of the program that sends the message for reference:
typedef struct { long tipo; struct { char nome[50]; char email[40]; } dados;} MsgStruct;
int main() { int msg_id, status; msg_id = msgget(1000, 0600 | IPC_CREAT); exit_on_error(msg_id, "Creation/Connection"); MsgStruct msg; msg.tipo = 5; strcpy(msg.dados.nome, "Pedro Silva"); strcpy(msg.dados.email, "pedro@sapo.pt"); status = msgsnd(msg_id, &msg, sizeof(msg.dados), 0); exit_on_error(status, "Send"); printf("Message sent!\n");}
9. Let L₁=L(ab*aa), L₂=L(a*bba*). Find a regular expression for (L₁ UL2)*L2.
10. Show that the language
is not regular.
L= {a":n≥1}
11. Show a derivation tree for the string aabbbb with the grammar
S→ABλ,
A→aB,
B→Sb.
Give a verbal description of the language generated by this grammar.
14. Show that the language
L= {wna (w) < Nь (w) < Nc (w)}
is not context free.
Chapter 1 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 1.3 - Why is the computer used by so many different...Ch. 1.3 - List the five major hardware components of a...Ch. 1.3 - Internally, the CPU consists of what two units?Ch. 1.3 - Prob. 1.4CPCh. 1.3 - Prob. 1.5CPCh. 1.3 - Prob. 1.6CPCh. 1.3 - What does the term multitasking mean?Ch. 1.5 - Describe the difference between a key word and a...Ch. 1.5 - Prob. 1.9CPCh. 1.5 - Describe the difference between a program line and...
Ch. 1.5 - Prob. 1.11CPCh. 1.5 - What happens to a variables current contents when...Ch. 1.5 - What is a compiler?Ch. 1.5 - Prob. 1.14CPCh. 1.5 - What is byte code?Ch. 1.5 - Prob. 1.16CPCh. 1.6 - What four items should you identify when defining...Ch. 1.6 - Prob. 1.18CPCh. 1.6 - What is pseudocode?Ch. 1.6 - Describe what a compiler does with a programs...Ch. 1.6 - Prob. 1.21CPCh. 1.6 - Is a syntax error (such as misspelling a key word)...Ch. 1.6 - What is the purpose of testing a program with...Ch. 1.7 - Prob. 1.24CPCh. 1.7 - Prob. 1.25CPCh. 1.7 - Prob. 1.26CPCh. 1.7 - Prob. 1.27CPCh. 1.7 - Prob. 1.28CPCh. 1 - Prob. 1MCCh. 1 - A byte is made up of eight a. CPUs b. addresses c....Ch. 1 - Each byte is assigned a unique a. address b. CPU...Ch. 1 - Prob. 4MCCh. 1 - If you were to look at a machine language program,...Ch. 1 - These are words that have a special meaning in the...Ch. 1 - These are symbols or words that perform operations...Ch. 1 - These characters serve specific purposes, such as...Ch. 1 - These are words or names that are used to identify...Ch. 1 - Prob. 10MCCh. 1 - Prob. 11MCCh. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - The following pseudocode algorithm has an error....Ch. 1 - Available Credit A program that calculates a...Ch. 1 - Sales Tax A program that calculates the total of a...Ch. 1 - Account Balance A program that calculates the...Ch. 1 - The variable x starts with the value 0. The...Ch. 1 - The variable a starts with the value 10. The...Ch. 1 - Prob. 1SACh. 1 - Prob. 2SACh. 1 - What is the difference between operating system...Ch. 1 - Why must programs written in a high-level language...Ch. 1 - Why is it easier to write a program in a...Ch. 1 - What is a source file?Ch. 1 - Prob. 7SACh. 1 - What is an algorithm?Ch. 1 - What is a compiler?Ch. 1 - What must a computer have in order for it to...Ch. 1 - What is the difference between machine language...Ch. 1 - Why does byte code make Java a portable language?Ch. 1 - Prob. 13SACh. 1 - Prob. 14SACh. 1 - What part of an object forms an interface through...Ch. 1 - What type of program do you use to write Java...Ch. 1 - Will the Java compiler translate a source file...Ch. 1 - What does the Java compiler translate Java source...Ch. 1 - Prob. 19SACh. 1 - Prob. 20SACh. 1 - Your First Java Program This assignment will help...
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